<template>
   <div class="search-box">
      <i class="icon-search"></i>
      <input class="box"
             :placeholder="placeholder"
             v-model="query"
             ref="input"
      >
      <i v-show="query" class="icon-dismiss" @click="clear"></i>
   </div>
</template>

<script type='text/ecmascript-6'>
  import {debounce} from 'common/js/util'
    export default{
      props:{
        placeholder:{
          type:String,
          default:'搜索歌曲、歌手'
        }
      },
      data(){
        return {
          query:''
        }
      },
      methods:{
        clear(){
          this.query = ''
        },
        setQuery(query){
          this.query = query;
        },
        blur(){
          this.$refs.input.blur();
        }
      },
      created(){
        this.$watch('query',debounce((newQuery)=>{ //为了不每次query稍有变化就发送ajax
          this.$emit('query',newQuery);
        },200))
      }
    }
</script>

<style rel="stylesheet/stylus" lang="stylus" scoped>
  @import "~common/stylus/variable"
  .search-box
    display: flex
    align-items: center
    box-sizing: border-box
    width: 100%
    padding: 0 6px
    height: 40px
    background: $color-highlight-background
    border-radius: 6px
    .icon-search
      font-size: 24px
      color: $color-background
    .box
      flex: 1
      margin: 0 5px
      line-height: 18px
      background: $color-highlight-background
      color: $color-text
      font-size: $font-size-medium
      &::placeholder
        color: $color-text-d
    .icon-dismiss
      font-size: 16px
      color: $color-background
</style>
